Air shutter and installation method thereof

A technology for shutting off air and airflow, applied in the field of air shut-off, can solve problems such as increasing energy consumption, reduce pressure loss, and maintain the effect of blocking the intrusion of external impurities

Inactive Publication Date: 2009-06-17
MAYEKAWA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the two air streams collide with each other in the central area of ​​the doorway opening, the volume of the air stream is larger compared to the case of an air curtain formed only by the air stream ejected from one side, thereby increasing energy consumption

Method used

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  • Air shutter and installation method thereof
  • Air shutter and installation method thereof
  • Air shutter and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0054] Refer below figure 1 To 3 to explain the first embodiment of the anti-insect / dust-proof air shutter.

[0055] The air shutoff device 1 is installed at the entrance of the storage space 10 . The passage space S is provided between the storage space 10 and the space 11 other than the storage space. The passage space S is formed by the ceiling part 12, the floor part 13, the left side wall part, and the right side wall part.

[0056] The shutter 1 has a left side casing 2 and a right side casing 3 that are located at opposite positions across a passage space S, respectively. The left case 2 is located on the left side wall portion side and the right side case 3 is located on the right side wall portion side.

[0057] The left case 2 is divided into two in the depth direction of the passage space S, and has a suction opening 21 and a discharge opening 22 , both openings facing the passage space S. As shown in FIG. The air passage 23 is formed by dividing the left side h...

no. 2 example

[0078] Refer below Figures 4 to 6 Now to explain the second embodiment of the insect-proof / dust-proof air shutter. A detailed explanation of the same structure as that of the first embodiment will be omitted.

[0079] The air shutoff device 1 is installed at the entrance of the storage space 10 . The shutter 1 has a left side casing 2 and a right side casing 3 at opposite positions across the passage space S, respectively.

[0080] In the second embodiment, the left case 2 is vertically divided into two parts, and has a suction opening 21 and a discharge opening 22 both facing the passage space S. As shown in FIG. The air passage 23 is formed by a part in the left side case 2 to allow the suction opening 21 to communicate with the discharge opening 22, so that the circulating air flow A vertically reverses its flow direction by 180° in the air flow reverse part of the air passage 23, and flows from the discharge The openings 22 are ejected as a recirculating air flow B.

...

no. 3 example

[0106] Figure 13 is a schematic perspective view of a third embodiment of the present invention. Fig. 14a is a longitudinal sectional view of the installed state of the insect / dust-proof air shut-off device of the third embodiment, which shows that in the cargo handling room between the storage room and the external space, the goods are moved from the truck into the storage space or from the storage space; The hanging door (vertical sliding door) is opened when the storage space is moved into the truck; Figure 14b is a section taken along line C-C in Figure 14a. Figure 15 is shown when the Figure 13 A graphical representation of the temperature over time in a storage room with and without an air curtain formed. Figure 16a is a graph showing the vertical distribution of air velocity through the doorway in the lateral central region of the doorway opening when there is a temperature difference between the exterior and interior; Figure 16b It is a diagram showing velocity ...

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PUM

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Abstract

An insect / dust-proof air shutter which can positively prevent intrusion of foreign mater such as insects and dust and further trap intruded insects is provided. The air shutter 1 has side casings 2, 3 between which a passage space S is formed through which an inside space of a room is communicated to an outside space, the side casing 2 has an air suction openings 21 and an air discharge opening 22 proximate horizontally to one another and opening toward the passage space S, the side casing 3 has an air suction opening 31 and an air discharge opening 32 proximate horizontally to one another and opening toward the passage space S, the suction openings 21, 31 face the discharge openings 32, 31 respectively across the passage space S, air passages 23, 24 are formed in each of the side casings 2, 3, air sucked through each of the suction openings 21, 31 is reversed in flow direction horizontally by 180 degrees in each of the air passages 23, 24 to be blown out from each of the discharge openings 22, 32, and air streams blown out from the discharge openings and sucked through the suction openings form circulating air streams flowing laterally across the passage space thereby forming double air films covering the passage space S.

Description

technical field [0001] The present invention relates to an air shutter, which is installed in a doorway where there is a temperature difference between the outside and the inside, so as to prevent the inflow of outside air into the room and the outflow of indoor cold air; Such as the anti-insect / dust-proof air shutting machine of the doorway of the sanitary controlled room of the food factory, which can effectively prevent the intrusion of external impurities such as dust, and especially can catch the intruding insects. Background technique [0002] An air curtain for preventing intrusion of outside air through a doorway of an insulating door of a building is disclosed in Japanese Patent Laid-Open No. 37-12183. According to the invention, the air is sprayed horizontally from the left and right sides to prevent the infiltration of external air and the infiltration of internal air through the doorway. However, since the two air streams collide with each other in the central a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F9/00
CPCF24F9/00A01M1/08
Inventor 津幡行一大须贺延王秋月隆宏渕上英纪小仓匡贵间中昭文安藤正胜中西达也
Owner MAYEKAWA MFG CO LTD
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